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Software · head to head

15Five vs Spline

15Five logo

15Five

Software

Performance management that drives results

From
$4/month
Rated
-
Full reviewWebsite
Spline logo

Spline

Software

3D design tool for the web

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Spline has a free tier, so it costs nothing to try first.
  • Each has a real cost: 15Five split across three tiers, so performance reviews, OKRs and 360 feedback need Perform at $11 per user per month rather than the $4 Engage tier; Spline aI generation features produce inconsistent and often distorted results, failing at basic depth perception tasks
  • They diverge on capability: 15Five covers Weekly check-ins, Spline covers 3D modeling.

Where they differ

Only the attributes on which 15Five and Spline actually diverge.

Attributes where 15Five and Spline differ
Attribute15FiveSpline
Starting price$4/monthFree
Pricing modelsubscriptionfreemium
Free tierNoYes
PlatformsWeb, Ios, Android, ApiWeb, iOS, Android, visionOS
Founded20112020

Identical on both: user rating (Not yet rated), category (Unknown).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in 15Five

  • Weekly check-ins
  • 1-on-1 meetings
  • OKRs & goal tracking
  • Performance reviews
  • High fives recognition
  • Engagement surveys
  • Pulse surveys
  • Manager effectiveness

Only in Spline

  • 3D modeling
  • Real-time collaboration
  • Animations
  • Interactions
  • Code export
  • React
  • Next.js
  • Webflow

What people use each for

The jobs each tool is most often brought in to do.

15Five

  • Running engagement surveys with heat maps and benchmarkingnot Spline
  • Performance reviews and continuous feedback cyclesnot Spline
  • Setting and tracking OKRsnot Spline
  • 360 degree feedback and talent matrix reviewsnot Spline
  • Compensation review cycles as a paid add-onnot Spline

Spline

  • Web 3D experiencesnot 15Five
  • Interactive prototypesnot 15Five
  • Product visualizationnot 15Five

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

15Five

  • Split across three tiers, so performance reviews, OKRs and 360 feedback need Perform at $11 per user per month rather than the $4 Engage tier
  • Manager training microlearnings are only in Total Platform at $16 per user per month
  • Compensation is a paid add-on at $9 per user per month, rising to $11 with benchmarking
  • The Kona meeting assistant is a further $2 per employee per month and Kona Coach $19 per manager per month
  • Advertised prices are the annual rates

Spline

  • AI generation features produce inconsistent and often distorted results, failing at basic depth perception tasks
  • Limited to simpler designs - not suitable for high-poly, detailed production models
  • Performance degrades with complex scenes containing many objects and materials
  • Limited non-Apple platform coverage compared to cross-platform design tools
  • Tutorials are either too fast for beginners or too basic for advanced users

Pricing, plan by plan

15Five

$4/month
  • Engage$4/month
    • Engagement surveys
    • Pulse surveys
    • Action planning
  • Perform$10/month
    • Weekly check-ins
    • 1-on-1s
    • Performance reviews
  • Total Platform$16/month
    • Everything in Engage & Perform
    • Career paths
    • Competencies

Spline

Free
  • FreeFree
    • Unlimited projects
    • Basic exports
    • Community support
  • Pro$9/month
    • Advanced exports
    • Custom domains
    • Password protection
  • Team$19/month
    • Team collaboration
    • Version control
    • Admin controls

Which should you pick?

Choose 15Five if

  • You need weekly check-ins.
  • You work on Web, Ios, Android, Api.
  • You also want 1-on-1 meetings.
15Five review

Choose Spline if

  • You need 3d modeling.
  • You want to start without paying.
  • You work on Web, iOS, Android, visionOS.
  • You also want real-time collaboration.
Spline review

Questions people ask

Is 15Five or Spline better?
Neither clearly leads. 15Five starts at $4/month and Spline at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, 15Five or Spline?
Spline has a free tier; the other does not. Paid plans start at $4/month for 15Five and Free for Spline.
Does 15Five or Spline run on more platforms?
15Five runs on Web, Ios, Android, Api. Spline runs on Web, iOS, Android, visionOS.
Can I use Spline for free?
Yes. Spline has a free tier, so you can try it without paying. 15Five starts at $4/month.
What is 15Five best used for?
15Five is most often used for running engagement surveys with heat maps and benchmarking, performance reviews and continuous feedback cycles, setting and tracking okrs, 360 degree feedback and talent matrix reviews. Of those, running engagement surveys with heat maps and benchmarking and performance reviews and continuous feedback cycles are not what Spline is typically brought in for.
What can 15Five do that Spline cannot?
15Five covers Weekly check-ins, 1-on-1 meetings, OKRs & goal tracking, Performance reviews. Spline covers 3D modeling, Real-time collaboration, Animations, Interactions.

Answered from the vendors’ own pages

Spline: What is Spline's pricing?

Spline offers a Free plan with watermarked web exports, Starter at $12/month (billed annually) removing watermarks, Professional at $20/month with unlimited projects, and Enterprise with custom pricing. Viewers are unlimited on all plans.

Source
Spline: Can Spline export 3D models to other tools?

Spline's export/import format support is more limited compared to traditional 3D tools like Blender. It focuses on web-first exports and native app code generation.

Source
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